Packaging Container
The packaging container retains essential information on the container body post-opening by using a laminated top seal film with a half-cut design, addressing the loss of information and promoting safe product handling.
Patent Information
- Application Number
- JP2025000375U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-04-02
- Estimated Expiration
- 2035-02-05
AI Technical Summary
Existing packaging containers lose important information such as manufacturing date, expiry date, and ingredient labeling when the top seal film is peeled off, making it difficult for consumers to verify the product's safety and quality after opening, leading to potential food waste.
A packaging container design with a laminated top seal film featuring a half-cut that allows the information-bearing area to remain adhered to the container body after opening, ensuring the information is retained for consumer reference.
Ensures important information remains visible on the container after opening, facilitating safe handling and reducing food waste by allowing consumers to verify product safety and quality.
Smart Images
Figure 0003250829000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a packaging container that is ideal for products that have a use-by date, such as food or medicine. [Background technology]
[0002] A packaging container is known which consists of a container body and a top seal film which is heat-bonded to a flange around the opening edge of the container body, the top seal film being a laminated film including a heat-resistant base layer and an easy-open film which is heat-bonded to the flange (Patent Document 1).
[0003] The packaging container is sealed by heat-sealing a top seal film after, for example, food or medicine is placed in it, and is opened by the consumer by peeling off the top seal film. [Patent Document 1] JP 2001-46243 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]
[0004] Incidentally, when the contents are, for example, food or medicine, it is essential to provide the packaging with labeling indicating attributes such as the date of manufacture, expiry date, best before date, storage method, and ingredient labeling.
[0005] In the above case, it is most reliable and also advantageous in terms of cost to provide the marking indicating the attribute on the top seal film rather than on the container body or an adhesive label.
[0006] However, when the top seal film is peeled off, it is removed, and important information such as the manufacturing date, best before date, storage method, ingredient labeling, etc. is lost. In particular, after consumers open the product, they are unable to confirm the best before date, best before date, ingredient labeling, etc. from the packaging, which can lead to concerns about the safety and quality of the product.
[0007] Furthermore, if the information is only written on the inside of the packaging or on a part that will be damaged after opening, consumers will not be able to check the information again, which could lead to mistakes in handling or storing the product.
[0008] The above issues are particularly important for food and pharmaceutical products that are sensitive to expiration dates, and they are inconvenient for consumers and may be a contributing factor in food waste. [Means for solving the problem]
[0009] The present invention has been created with the objective of providing a packaging container that solves the above problems.
[0010] In other words, the packaging container of the present invention consists of a container body and a top seal film that is heat-bonded to a flange around the opening edge of the container body, and the top seal film is a laminated film including a heat-resistant base layer and an easy-open film that is heat-bonded to the flange, in which a half-cut is made across the top seal film at any position, and one of the areas partitioned by the half-cut is provided with a handle for peeling the top seal film off the container body to open it, while the surface of the other area is marked with an indication indicating the attributes of the items to be contained in the container, so that when the top seal film is peeled off to open it, the area with the indication indicating the attributes of the items to be contained in the container remains adhered to the container body.
[0011] The invention described in claim 2 is characterized in that in the packaging container, the depth of the half cut is such that only the base layer is cut and the easy-open film remains.
[0012] In addition, the invention described in claim 3 is characterized in that, in the above-mentioned packaging container, the markings indicating the attributes of the items contained in the container include all or any of the following: manufacturing date, expiration date, best before date, storage method, and ingredient labeling.
[0013] The inventions described in claims 4 and 5 are characterized in that in the packaging container, half cuts are made at positions connecting adjacent flanges of the rectangular container body. Effect of the Invention
[0014] In the packaging container of the present invention, the top seal film that is heat-bonded to the container body has weakened strength at the half-cut area, so when it is peeled away from the container body from the area that provides a handle for opening, the heat-bonded strength at the half-cut area overcomes the peeling force and the area is cut, leaving the area labeled with information indicating the attributes of the items contained in the container adhered to the container body.
[0015] As a result, important information such as the date of manufacture, expiry date, best before date, storage method, and ingredient labeling remains on the container even after opening, allowing consumers to check the expiry date and food labeling related to the product's safety and quality. Consumers can use the information without losing it even after opening, which helps reduce food waste and promotes the practice of proper storage methods.
[0016] In addition, in the packaging containers of claims 4 and 5, the half cut is made at a position connecting adjacent flanges of the rectangular container body, so it is easier to cut than if it were made at a position connecting opposing flanges. [Brief description of the drawings]
[0017] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] 1 is a plan view of a different embodiment of the packaging container of the present invention; [Figure 4] 1 is a cross-sectional view of a top seal film for a packaging container according to the present invention. BEST MODE FOR CARRYING OUT THEINVENTION
[0018] A specific embodiment of the present invention will be described below with reference to the accompanying drawings. Figures 1 and 2 are perspective views of the packaging container of the present invention before and after opening. In the drawings, reference numeral 10 denotes a container body. Here, the container body 10 is exemplified as a box-shaped body, but it goes without saying that it may have other shapes, such as a cup-shaped body. A flange 11 is provided around the opening edge of the container body 10.
[0019] After the contents G, such as food or medicine, are placed in the container body 10, it is covered and sealed with a top seal film 1. The top seal film 1 is thermally bonded to a flange 11 around the opening edge of the container body 10, and is configured as a laminated film including a heat-resistant base layer 1A and an easy-open film 1B that is thermally bonded to the flange and is easy to open. Here, a PET film (Futamura Chemical: FE2001) is used as the base layer 1A, and DIC: E7800PET is used as the easy-open film 1B, but it goes without saying that the present invention is not limited to these.
[0020] The top seal film 1 is provided with a half cut 2 that crosses it at an arbitrary position. This half cut 2 is for dividing the top seal film 1 into an area A that is peeled off when peeling it off and an area B that remains on the container body 10, and is provided across two sides of the flange. The depth of the half cut 2 is set to a level that cuts only the base layer 1A and leaves the easy-open film 1B, thereby preventing a loss of the airtightness of the packaging container when it is covered.
[0021] A handle 3 is provided at the end of the peelable region A of the top seal film 1 for peeling it off from the container body 10 to open it, and a mark 5 indicating the attributes of the contents G in the container is provided on the surface of the region B that remains on the container body 10.
[0022] The indication 5 indicating the attributes of the contents G is expected to include, but is not limited to, the manufacturing date, expiry date, best before date, storage method, and ingredient information.
[0023] In the packaging container of the present invention, the top seal film 1 heat-bonded to the container body 10 has weakened strength at the half-cut location 2. Therefore, when peeled away from the container body at area A, which has the handle 3 for opening, the top seal film 1 is cut because the thermal adhesion strength exceeds the peeling force at the half-cut location. However, for example, when the half-cut 2 is positioned at a position connecting adjacent flanges 11 of the container body 10 as shown in Figure 3, it is more likely to be cut than when it is positioned at a position connecting opposing flanges 11 as shown in Figures 1 and 3. [Explanation of symbols]
[0024] G Contents A. Area to be torn off B Region that stops at container body 10 1 Top seal film 1A Base material layer 1B Easy Open Film 2 Half Cut 3. Clues 5. Attribute indication 10 Container body 11 Flange
Claims
1. A packaging container comprising a container body and a top seal film that is heat-bonded to a flange around the opening edge of the container body, the top seal film being a laminated film including a heat-resistant base layer and an easy-open film that is heat-bonded to the flange, wherein a half cut is made across the top seal film at any position, one area partitioned by the half cut is provided with a guide for peeling the top seal film off the container body to open it, and the other area is marked with an indication indicating the attributes of the item contained in the container, so that when the top seal film is peeled off to open it, the area marked with an indication indicating the attributes of the item contained in the container remains adhered to the container body.
2. 2. The packaging container according to claim 1, wherein the depth of the half cut is such that only the base layer is cut and the easy-open film remains.
3. 3. The packaging container according to claim 1 or 2, wherein the indication indicating the attributes of the product contained in the container includes all or any of the following: date of manufacture, expiry date, best before date, storage method, and ingredient indication.
4. 3. A packaging container according to claim 2, wherein the half cut is made at a position where adjacent flanges of the rectangular container body are joined.
5. 4. A packaging container according to claim 3, wherein the half cut is made at a position where adjacent flanges of the rectangular container body are joined.